Multiscale Numerical Study of Enhanced Ductility Ratios and Capacity in Carbon Fiber-Reinforced Polymer Concrete Beams for Safety Design

Polymers, Journal Year: 2025, Volume and Issue: 17(2), P. 234 - 234

Published: Jan. 17, 2025

Rigid reinforced concrete (RC) frames are generally adopted as stiff elements to make the building structures resistant seismic forces. However, a method has yet be fully sought provide earthquake resistance through optimizing beam and column performance in rigid frame. Due its high corrosion resistance, integration of CFRP offers an opportunity reduce frequent repairs increase durability. This paper presents structural response beams integrated into when subjected events. Without any design provision for systems extreme events, multiscale simulations parametric analyses were performed optimize residual state global performance. Macroparameters, represented by ductility ratio microfactors, have been analyzed using customized version modified compression field theory (MCFT). The main parameters considered reinforcement under tension compression, strength concrete, height-to-width ratio, section cover, confinement level, all which important understand their influence on analysis results highlight increased higher load-carrying capacity CFRP-reinforced tested component compared RC component. These shed light possibility designing components that could improve ductile with energy dissipation suitable applications non-corrosive seismic-resistant buildings. also shows reduced brittleness enhancement failure mode. Numerical experimental showed strong correlation deviation about 8.3%, underlining reliability proposed approach structures.

Language: Английский

Integrating Building- and Site-Specific and Generic Fragility Curves into Seismic Risk Assessment: A PRISMA-Based Analysis of Methodologies and Applications

CivilEng, Journal Year: 2024, Volume and Issue: 5(4), P. 1011 - 1041

Published: Nov. 8, 2024

Fragility curves are fundamental tools in seismic risk assessments, providing insights into the vulnerability of structures to earthquake-induced damages. These curves, which plot probability a structure reaching or exceeding various damage states against earthquake intensity, critical for developing effective modification strategies. This review aims present characteristics between building- and site-specific fragility incorporate detailed local characteristics, generic that apply broader, more generalized parameters. We utilize PRISMA (Preferred Reporting Items Systematic Reviews Meta-Analyses) methodology systematically literature address key research questions about methodological differences, applications, implications these curve types assessing risks. The methods involved comprehensive search combination existing studies on topic, focusing how developed applied real-world scenarios. results from this show while precise, require extensive data therefore complex costly develop. In contrast, though less accurate, offer cost-effective solution preliminary assessments over large areas. conclusions drawn suggest each type has its merits, choice should be guided by specific requirements assessment task, including available resources need precision estimations.

Language: Английский